# Summary Functions

Description

Portable SQL summary functions.

- Name
- Description
- Avg
Compute the average value of the expression over all rows that satisfy the expression.

- Count
Compute the count of the rows that satisfy the expression or all rows Count(*).

- Max
Compute the maximum value of the expression over all rows that satisfy the expression.

- Min
Compute the minimum value of the expression over all rows that satisfy the expression.

- StdDev
Compute the standard deviation of the expression over all rows that satisfy the expression.

- Sum
Compute the sum of the expression over all rows.

- Variance
Compute the variance of the expression over all rows that satisfy the expression.